Sand pump



W. B. GYGER Julie l0, 1930.

SAND PUMP Filed Deo. 19, 1924 3 shets- Sheet 1 QQ WW y W /LGIJG @7" Jy ,Wj/

W. B. GYG ER June 10, 1930.

SAND PUMP Filed Dec. 19, 1924 5 Sheets-Sheet 2 W. B. GYGER June l0, 1930.

SAND PUMP Filed Dec. 19, 1924 3 Sheets-Sheet 5 Patented June 10, 1930 UNITED STATES vPATENT OFFICE WAYNE B. GYGER, OF OTTAWA, ILLINOIS, ASSIGNOR TO OTTAWA SILICA COMPANY, OF OTTAWA, ILLINOIS, A CORPORATON OF DELAWARE SAND PUMP Application filed December 19, 1924. Serial No. 757,019.

This invention relatesto pumps adapted for use in Conveying sand and other loose or iuid materials. The principal object of the invention is to provide a pump of simplified construction and greatly improved eiciency of operation, as compared with other simliar types of pumps heretofore used. A further object of the invention is to provide a steam and vacuum pump comprising a vacuum chamber having inlet and discharge openings located in substantial alignment so that there is, in effect, a substantially direct flow of material through the pump. A further object of the invention is to provide Aa pump in which the parts are so arranged that the friction of the conveyed materials on the surfaces of the pump is greatly reduced. Still another object of the invention is to provide a steam and vacuum pump made up of a plurality of detachably connected parts any one 'of which may be replaced or renewed independently of the others. Other objects of the invention relate to various features of construction and arrangement'which will apsection taken on the line 2-2 of Fig. 1; Fig.

3 shows an enlarged vertical section through one of thewater injection nozzles; Fig. 4 shows a side elevation of the pump looking toward the inlet side thereof, its parts being illustrated in vertical section on the line 4-4 of Fig. 1; Fig. 5 shows a horizontal section through the steam valve taken on the line 5 5 of Fig. 4; and Fig. 6 shows a vertical section through the steam valve taken on the line 6-6 of Fig. 5.

rlhe improved pump drawings comprises two similar pump chambers 10 each including an upper cylinder 11 detachably connected to and communicating with a lower casing 12. Each cylinder 11 has an integral upper wall 13 but is open at its lower end to communicate with the opening 14 in the top wall the connected illustrated in the casing 12. The casing 12 projects longitudinally beyond the walls of the cylinders 11, as shown in Fig. 2, and the lower portions thereof are substantially circular in cross-section, as shown in Fig. 4, while the upper portions thereof vare providedk with reinforcing ribs 15 and flanges 16 through which a connection is made with the flanges 17 on the cylinders 11. The cylinders 11 are provided with flanges 18 adjacent the upper parts thereof through which the cylinders are connected to each other by bolts 19 and the lower parts of the cylinders are connected by plates 20 and stud bolts 21 engaging the flanges 17. In this way, the adjacent cylinders and their connected ower casings are secured together to form a rigid construction. The upper parts of the cylinders 11 may preferably be provided with handles 22 which may be yengaged. by hooks, chains, and the like, for

moving the pump from one location to another.

The two cylinders 1-1 and their connected casings 12 are similar in construction, as are the parts mounted therein and connected thereto, so a description of one will suffice for both. Each casing 12 is provided at one end with an opening 24 having mounted therein an inlet conduit 25 which is in the form of arelatively short tube having a flared mouth 26. The conduit has an annular flange 27 by which it is secured to the casing and.

within the casing 12, the lower part of the inlet conduit is turned upwardly to a slight extent as illustrated at 23 so that the end v face 29 of the conduit is slightly inclined to the vertical. This end face 29 has detachahly secured thereto a valve seat 30 having formed thereon an arm 31 which serves as a support for a valve 32 comprising a. flexible plate 33 of rubber belting, or the like, which is secured to the arm y31 by stud bolts 34. The stud bolt 34 also secures in place an inclined arm 35 which is adapted to engage the valve 32 to limit its opening movement, so that the valve at all times tends to close by gravity independently of the back pressure in the vacuum chamber 37 which is formed by the connected cylinder 11 and the casing 12. A valve 38 of rubber or the like is secured to the kss LOD

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under side of the valve plate 33, being retained in position by a metal washer 39 and a weight 40 is mounted on the upper side ot the plate 33, all ot these parts being secured together by a bolt 41. The hinged mounting of this valve permits it to swing upwardly to leave the outlet opening of the conduit 25 entirely unobstructed so that the sand or other material flows inwardly without interference. The casing 12 is provided above the valve seat 30 with an opening 42 closed by a detachable cover 43 which permits access to the valve and valve seat when repairs or replacement are necessary.

At the end thereof opposite the inlet conduit 2V, each casing 12 is provided with an -outlet opening 45 having detachably mounted therein an outlet collar or bushing 46 having a iiange 45L which .is secured to the wall of the casing 12 and av tubular portion 46b which projects through the wall of the casing` and beyond its inner surface to some extent so that shoulders are formed with re sulting depressions 47 around the bushing adapted to facilitate the deposit of sand or other sediment 'from the material being conveyed. This sediment may be deposited above the bushing 46 as shown at 48 and may7 extend across the bottom oi' the casing 12 from the bushing 46 .to the mouth of the inlet conduit 25, as shown at 49. ln this way7 the surfaces of the casing and surrounding parts on which corrosion is most likely to occur by the action of the moving sand are protected by a stationary layer or deposit of sand or other sediment so that the wear on the surfaces of the pump is materially reduced or substantially eliminated. The outlet bushing- 46 has detachably mounted thereon a` valve Seat 50 having a supporting arm 51 connected to a valve 52 which is in all respects similar to the valve 32 previously described. The extent to which the valve 52 may open is limited `by an arm 53 which is similar to the arm 35 and similarly detachably mounted. r)The valve seat 50 and valve 52 are located within a detachable valve casing 55 having an opening 56 in its wall which is normally closed by a detachable cover 57. The cover 57 is in close proximityv to the valve and valve seat so that it may be removed to permit repair or replacement of these parts. rlhe end face 58 of the casing 12 on which the valve casing 55 is mounted inclined to the vertical at an angle of preferably substantially 45 degrees, so that the casing 55 is inclined upwardly at a c0rresponding angle and this casing 'forms lone arm of a Y-coupling by which the discharge outlets of the two vacuum chambers 37 are connected. Each casing 55 is provided with a flange 59 by which it is connected to the complementary casing 55 leading from the other chamber .37 and each casing 55 is further provided with an annular iange 60 on its inner side forming a recess 61 so that sand or other sediment may collect at 62 and 63 to reduce or eliminate the friction of the moving material on the surfaces of the casing in the region of the valve 52. The channels of the casing 55 communicate through the common discharge opening 64 with a cornmon discharge elbow 65 connected through flanges GG with a common discharge conduit 67 extending horizontally therefrom. By reason of the inclination of the face 5S of the casing 12 and the correspond ing inclination of the casing 55, the discharge conduit 67 is located some distance above he lowei` part of the casing 12 so that the casing 12 may be immersed in the sand and water or other material, while the conduit (i7 .is located above the material being pumped. irny sand or other sediment which may collect in the dischargevconduit 67 during the times when the pump is shut down, may be washed out by a jet of water introduced through the opening 68 from a supply pipe G9 having connected therein ay valve 7 O which is normally closed.

The sand or other material is propelled throueh the pump by the action oit a partial vacuum and steam pressure which prevail alternately in each oi' the chambers 37, a vacuum being produced in one chamber 37 at a time when steam pressure is present in the other chamber 37 oi the pump. Steam is supplied to the cylinders ot' the pump through a pipe having connected therein a valve 7 6. The pipe 75 communicates with a passage 77 formed in a valve casing mounted on the top walls 13 ot the cylinders 11. rllhe valve casing provided with two diverging passageways 79 each of which is connected to communicate with one of the cylinders 11 and the passage ot steam from the passageway 77 to cach ot the passageways 79 is controlled by means of a steam valve 80. 'This valve is substantially triangular in crosssection, having two downwardly diverging side walls 81 and S2' connected by a lower curved wall 83. rit the point of convergence of the walls 81 and 32, the valve member is provided with a lug 83 which engages a recess 84 in the cap member 35 el' the valve casing, thus forming a bearin about which the valve member oscillates. The cap 85 has V -shaped recess to receive the valve member 89 and the lateral movement of the valve member is limited by the linclined converging walls 86. rllhe steam passes from the passage 77 to the chamber 87 of the valve 8O through a port 38 and from the space S7, the steam passes through one or t-he other of the two ports 90 to one or the other of the passageways 79 through openings 91. The passageways 79 are divided at their upper ends by lugs 92 thus forming the openings 91 and other openings 93 which are adapted to form a communie; tion between the passageway 79 and the spaces 94 located between the lateral walls 81 and 82 of the valve member and the inclined surfaces 86 of the cap member. The passageways in the valve casing are closed on their front sides by a cover plate 95. The steam which passes downwardly through the passageways 79 is distributed into the cylinders 11 through steam nozzles 96 each of which is substantially cylindrical in form, being provided with a lower wall 97 having formed thereon a cone-shaped projection 98 which directs the steam outwardly through the openings 99 which are formed in the lateral wall of the nozzle.

The condensation of the steam in the vacuumvchambers 37 is effected chiefly by jets of cold water which are introduced into the chamber through water injection nozzles 105, one of which is mounted in the side wall of each of the casings 12, as shown in Fig. 6, the arrangement of the nozzles being such that they discharge upwardly toward the central parts of the steam nozzles 96, as shown by the arrow 106. The water injection nozzles 105 are supplied with cold water through branch pipes 107 which lead from a common supply pipe 108 having connected therein a valve 109. Each nozzle 105 has a passage 110 formed therein to communicate with a restricted passage 111 opening into the bottom part of a chamber 112. .A ball valve 113 is mounted in the chamber 112 and is adapted to close the passage 111 when it' engages the valve seat 114 at the lower end of the chamber. The upper end of the chamber is closed by a plug 115, detachably secured in position by means of a set screw 116. This plug has formed therethrough a passage 117 and notches 118 are formed around this passage at the lower end thereof so that when the ball 113 is in its uppermost position, the water can pass around the ball 113 and through these notches into the discharge passageway 117.

When the valve 80 is in the position illustrated in Fig. 6, steam passes therefrom through one of the ports 90 and through the passageway 79 into the right-hand cylinder, as viewed in Fig. 6, with the result that the steam in the right-hand cylinder expels therefrom through the connected discharge valve 52 the sand and water which has previously been drawninto the vacuum chamber. Then the level of the water and sand falls below the mouth of the nozzle 105 connected in that chamber, the water et thrown up from the nozzle servesto condense the steam in the right-hand chamber so that a partial vacuum is produced. This results in closing the discharge valve 52 and the inlet valve 32 then opens to permit a new supply of sand and water to be drawn into the chamber under the influence of the outside atmospheric pressure. When the steam is condensed and a partial Vacuum produced in the right-hand chamber, the opening 93 leading from the passage 79 for that chamber to the space 94 on the right-hand side of the valve 80, as viewed in Fig. 6, causes an inequality of pressure on opposite sides of the valve wall 82, so that the valve 80 moves to its other extreme position and establishes a flow of steam through the other passageway 79 to the left-hand chamber 37, as viewed in Fig. 6. This flow of steam expels the sand and water from the left-hand cylinder and when this material has been substantially expelled from the chamber, theexposure of the water ini ection valve 105 results in the condensation of the steam so that a partial vacuum is produced in the left-hand chamber and a new charge of sand and water is drawn in to that chamber through its inlet conduit. In this way the chambers 37 operate alternately to discharge separate charges of sand and water through the common outlet conduit 67.

In employing the pump for moving sand, Ifor example, the sand or the like is washed from the pit or rock by a stream of water with the result that the particles of sand,v

and water flow downwardly to form a more or less fluid mixture in which the lower part of the pump is immersed so that the inlet conduits 25 are beneath lthe surface of the sand and water. When the pump is in operation, the material which is drawn in through the inlet conduit is discharged through the adjacentoutlet conduit which is located in substantial alignment therewith so that, although the sand and water well up within the connected cylinder 11, there is, in effect, a substantially direct flow of material through the pump and a consequent elimination of unnecessary friction and loss of power. The pressure of the steam downwardly on the material in each cylinder 11, forces the material against the walls of the connected casing 12 and then outwardly and upwardly through the outlet bushing 46 andthe accumulation 49 of sediment in the bottom of the casing furnishes a wearing surface on which the sand moves so that there is no corrosion on the metal itself. At substantially all points where the sand changes its direction of travel, means are provided for forming a stationary deposit of sand which acts as a wearing surface for the moving body of sand. The sectional construction of the vacuum chambers 37 and of the inlet and outlet con- -duits makes it possible to replace the parts Although one Yform of the invention has been shown and described, it will be understood that the invention may be embodied in various other forms Without departing from the scope of the appended claims.

I claim:

1. rJhe combination in a pump oi' a casing, an inlet conduit leading into one en'lL of said easing, a valve seat detachably mounted on the end of said conduit, a bodily movable valve carried by said valve seat, means independent of the casing and valve for limiting movement of said valve, means for permitting access to said valve and valve seat through the Wall of said casing, and outlet means located substantially in a direct tlov7 line vvith said inlet conduit.

2. rlie combination in a pump of a horizontal casing, an inlet conduit leading horizontally into one end of said casing and having its inner end upturned and 4directed away from the bottom of said casing, and a detachable valve and valve seat for closing the upturned end of said conduit, and independent means limiting the movement of said valve.

3. The combination in a pump oi' a casing, an inlet conduit leading int-o one end of said casing, an outlet conduit having communication with the opposite end of said casing, and means for forming a sand trap leading from the inner end of said inlet conduit to the discharge end 0i' said casing for causing a deposit of sediment in the bottom ot said easing for forming a Wearing surface between said inlet conduit and said outlet conduit.

4L. The combination in a pump of a pair of casings extending parallel to each other and spaced apart, said casings having` one end upturned, a pair of cylinders each mounted on one of said casings and extending upwardly therefrom, means for securing said cylinders together, an inlet conduit extending into one end of each of said casings and having its inner end upturned, a valve and valve seat detachably carried by said upturned end, an outlet conduit leading from the upturned end of each of said casings, and a common discharge conduit having communication with each of said outlet conduits.

5. The combination in a pump of a casing, an inlet conduit detachably mounted in one end of said easing with its end extending thereinto in spaced relation thereto and upturned, an outlet bushing detachably mounted in the opposite end of said casing which is upturned, a valve mounted on said bushing, a valve casing mounted on said irstnamed casing around said valve, and a discharge conduit detaehably connected to said valve casing.

6. The combination in a pump of a casing, an inlet conduit detachably mounted in one end of said casing, an outlet bushing detachably mounted in the opposite end of said casing, a valve mounted on said bushing, a valve casing mounted on said first-named casing around said valve, and an annular flange in said valve casing for causing a deposit o' sediment to form a wearing surface for the moving body of sand.

7. The combination in a pump of a horizontally disposed casing having one end upwardly turned, an inlet conduit leading into said casing at the other end, said conduit having an upwardly directed end face spaced from the valls of said casing, a valve seat mounted on said inclined face, a hinged valve adapted to engage said valve seat in an inclined position, means for limiting the upward movement of said valve, and a valved discharge conduit detachably mounted in the ueturned end of said casing.

VAYN B. GYGER. 

